As the only company that has released a tablet that has managed to take a dent out of Apple's iPad sales (the Kindle Fire accounts for 22% of U.S. tablet sales), many people are looking forward to seeing what Amazon's next generation Kindle Fire has in store. The first generation Kindle Fire made a splash with a $199 price point and 7" form-factor, but Amazon is looking to expand the lineup’s appeal with second generation the devices.

The first up is a refreshed 7" model. It keeps the same look as the original, but includes a faster processor and twice the RAM. In addition, the price has been slashed from $199 to $159. It's hard to argue with faster performance and a cheaper price tag.

But the big announcement is the Kindle Fire HD. This new tablet is available with a 7" (1280x800) or 8.9" IPS display (1920x1200). The 8.9" Kindle Fire HD is only 8.8mm thick and weighs just 1.25 pounds. Powering the Kindle Fire HD is a Texas Instruments OMAP 4470 processor.

Amazon CEO Jeff Bezos even took at a dig at the Apple iPad by announcing that the Kindle Fire HD comes with dual stereo speakers that feature Dolby Digital Plus technology. The Kindle Fire HD also includes dual Wi-Fi antennas an MIMO compared to a single Wi-Fi antenna on the iPad and Nexus 7. Bezos says this allows its Kindle Fire HD tablets to outperform all competitors in Wi-Fi bandwidth tests.

Kindle Fire HD 8.9" showing "FreeTime"

Another interesting feature that Amazon is introducing with the Kindle Fire HD is FreeTime. FreeTime allows a parents to setup profiles on the device so that children will only have access to "kid-friendly" content while the grownups can still have access to entire spectrum of content. The profiles will also allow parents to limit how much time their child plays on the device.

The Kindle Fire HD will be available with 16GB of storage capacity and also includes HDMI out and Bluetooth. The 7" model will be priced at $199 (ships September 14) while the 8.9" model rings in at $299 (ships November 20).

Amazon also announced one additional member to the Kindle Fire HD family. The Kindle Fire HD LTE 4G model is priced at $499, includes 32GB of storage, and comes with an amazing data package. For just $49.99/year, you get 250MB of bandwidth per month, 20GB of cloud storage space, and a $10 in Appstore credit. Can you say game changer?

The Kindle Fire HD LTE 4G will ship on November 20.

For those that prefer Amazon's more traditional line of e-readers, the company also today announced the Kindle Paperwhite. The Kindle Paperwhite features a higher resolution screen with 212 ppi (62 percent more pixels than previous model) that offers whiter whites and blacker blacks.

Kindle Paperwhite

The capacitive touch screen device is 9.1mm thick, weighs just 7.5 ounces, and had an 8-week battery life. It costs $119 and will ship on October 1. The Kindle Paperwhite 3G will also ship on October 1 for $179.

Even further done the e-reader ladder is the standard "Kindle". Amazon has updated the Kindle to include new fonts and crisper text, and has dropped the price from $79 to $69. It will ship on September 14.

Most sites are mum on the resolution of the 7". The DPI numbers Amazon touted were for the 8.9" model. That same 1920x1200 screen on a 7" would provide a significantly higher DPI, approximately 323. That is crazy high and seems like something that Amazon would have mentioned.

Actually I can read that another way. The 8.9 is 1920x1200 because it doesn't say they both do, it only has the parentheses after the 8.9, as opposed to both, or explicitly saying on both. =P Just saying it can be read this way, though I don't think it'd be the best way to state it.

As far as both being HD, we all know marketing has created "HD" as well as "Full HD", and while Amazon is not really differentiating, the 7" could very well be 1280x800ish and still be HD, no? 720P is technically HD too.